Machine for use in operating upon the heels of boots and shoes



. F. M. FURBER. MACHINE FOR USE IN OPERATING UPON THE HEELS 0F BOOTS AND SHOES.

' APPLICATION FILED JULY 3,1916.

1,362,614, I Pate l ned Dec. 21, 1920.

2 SHEET.SSHEET 1- 1 i -1 1 l I 1 l F. M. FURBER. MACHINE FOR USE I OPERATING UPON THE HEELS 0F BOOTS AND SHOES.

APPLICATION FILED JULY 3,1916.

Patented Dec.

UNITED STATES PATENT OFFICE.

FREDERICK M. FURBER, OF REVERE, MASSACHUSETTS, ASSIGNOR, BY MESN E ASSIGN'- MENTS, T0 UNITED SHOE MACHINERY A CORPORATION OF NEW JERSEY.

conror ngrron, or rs rnnson, NEW JERSEY,

MACHINE FOR USE IN OPERATING UPON THE HEELS or BOOTS AND'SHOES.

7 Application filed July 3,

To all whom it may concern:

Be it knownthat I, FREDERICK M. FURBER, a citizen of the United States, residing at Revere, in the countyof Suffolk and State of Massachusetts, have invented certain improvements in Machines for Use in Operating Upon the Heels of Boots and Shoes, of which thefollowing description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for operating upon the heels of boots and shoes and is herein shown by way of example as applied to a machine for forming a scallop in the breast edge of the top lift of a heel and then finishing the face of the scallop as successive operations and substantially as parts of the same operation. It is the common practice in the manufacture of boots and shoes to form a scallop or concavity in the breast edge offthe top lift of an attached,and usually otherwise finished, heel.

This scallop comprises a concaved face extending from one corner of the heel breast next the tread face to the opposite corner and is deepest andv widest at the central portion, narrowing out to practically nothing at the corners. The scallop adds to the attractive appearanceof the heel by giving it a more finished appearance and a heel so formed is less likely, when the shoe is worn, to catch on )rojections' from the surface walked on. hitherto the scallop has been formed by one operation upon a machine and the scalloped surface has been secured or finished as a separate operation. An object of this invention is to provide a machine by which the scalloping and scallop finishing or scouring operations may be performed upon a heel successively while the shoe is in the machine as parts of the same operation and substantially at the same time.

A feature of the invention consists in a novel organization of a plurality of rotary tools adapted one for stock removing and another for surface finishing, combined with means constructed and arranged for presentation of the work to the tools for the successive operation of the tools. Preferably the tools operate inthe order named and act successively upon the same portion with the shaft and a sideface disposed an- Specification of Letters Patent. Patented Dec; 21 192() 1916. semu No. 107,345.

,of the work; i 'A shown herein, thetools are located adjacent to each other and preferably upon .concentric shafts or upon the sameshaft, work presentingmeans being, provided which is movable relatively to the cutterto bring the work first into operative relation to one tool and then to the other tool. ;;In the construction shown herein, the operative surfaces of the tools are arranged parallelrwith the axis of the shaft-on which the tools are mounted, and the work presenting means is guided in a right line parallel with the shaftl Another feature ofthe invention consists in a tool having a peripheral face' parallel 7O gularly to the shaft with work presenting means for-bringing thework first into operative relation to the angularly disposed or inclined face of the tool for the removal of the greater part of the stock and then into operative relation to the peripheral portion of the tool to effect a finishing out. :This eonstructionmaybe combined as a further feature of the invention with a finishing tool for the: production of the finished surface uponthe face of the work from which the finishing cut is taken. The finishing tool-is preferably axiallyconcentricwith the cutting or stock removing tool and is arranged adjacent to the cutting tool, the work presentingineans being arranged to bring the work into the fields of operation of the cutting and finishing tools successively by-continuous movement in the same direction.

j Another feature of the invention relates to a tool for finishing the surface of the work'and consists in a rotary tool provided with'members loosely retained in recesses in the tool and adapted to project beyond the periphery of the tool for ironing and polishing the surface of'the work brought into engagement with it. In the construction shown herein, the tool is provided near its ,periphery with recesses having openings on the periphery and in each of the recesses is located a cylindrical member of a size to permit part of the curved surface of the member to project through the opening when impelled to do so by centrifugal force due to rotation ofthe tool.

Another feature of the invention consists in a plurality of axially concentric rotary tools having means for relative adjustment of their acting faces radially of their axes to enable them to act successively upon the same surface of a piece of work which is moved past them in a fixed path. As shown herein, a cutting tool and a finishing tool are provided, the cutting tool having cutters arranged for adjustment radially of the tool to cooperate with the finishing tool, this adjustment being of especial utility for retaining the radius of the cutter constant as the cutting members are ground away in sharpening them.

As shown herein for the purposes of illustration, the part of the shoe operated upon is the heel and the tools operate to form and finish a scallop in the front edge of the top lift, the-cutting tool forming a scallop and the finishing tool acting to finish the face of the scallop.

A further feature of the invention consists in a plurality of tools so constructed and arranged that they constitute substan: tially a single tool having a stock removing or cutting part and a stock'finishing part into operative relation to which parts the work is moved successively.

These and other features of the invention will appear'more fully from the following detailed description when read in connection with the accompanying drawings and will be pointed out in the appendedv claims.

In the drawings, 7 V

Figure 1 is a side view of the head of the machine constructed in accordance with this invention Fig. 2 is a front view of the machine head;

Fig. 3 is a perspective view of a heel after being operated upon by the machine; 7

Fig. 4 is a detail view, partly in section, of the work positioning mechanism;

Fig. 5 is a side view of a cutting tool and a finishing tool of modified construction;

Fig. 6 is a detail View of the finishing tool shown in Fig. 5; V

Fig. 7 is a detail view of the cutting tool shown in Fig. 5; and V i Fig. 8 is a detail of the cutter holding pin of the cutter shown in. Fig. 7

In the drawing, 2 is a shaft mounted in bearings 3 on a frame or head 4 which may conveniently be mounted on a column. The

shaft 2 is driven by power applied to a pulley 6. On one end of the shaft are mounted two tools which may, as shown in Fig. 1, be a cutting tool 8 and a finishing tool 10 shown in the fi ure as a scouring tool. The cutting toof 8 is provided with a peripheral cutting face a and a side cutting face 6, the latter being arranged at an oblique angle to the axis of the tool. The tool faces preferably merge into a rounded cutting face at the corner of the tool. The finishing tool has a diameter substantially equal to, or

slightly greater than, that of the peripheral face of the cutting tool and has sufiicient lat eral extent properly to effect the finishing operation as the work is drawn along the acting faces of the tools for the operation of the tools upon the work.

The left hand bearing of the shaft 2 is extended-by means of a sleeve12 held in one of the bearings 3. Upon the sleeve 12 ribs l4 are formed which have their lower faces parallel with the axis of the tools. These faces are engaged by rolls 16 mounted on extensions 26 from a frame 22 which has a rearward extension 24 carrying a rod 26 held by a screw 27 and arranged to slide longitudinally through the head of the machine. compression spring 2S'is mounted upon the rear portion of the rod between the frame and a head 29 upon the rod 26 to maintain the rod. normally in rearward position, and a stop 30 adjustably mounted on the head 29 is provided to limit the forward movement of the frame against the spring A slide 34 is mounted in the frame 22 for vertical adjustment by means of a thumb screw 36 rotatably mounted in the frame 22 and having threaded engagement with the slide 34. The slide is slotted to embrace'the sleeve 12 and at one side has a forward projection 40 to which is pivoted at 44 a plate 46 which is held in adjusted position about the pivot 44 by a screw. 41. engaging a slot in the projection 40.

Two positioning fingers 50, 52, Figs. 2 and 4, are mounted for lateral ustment in the plate 46 by means of T-slides 54, 56 mounted respectively in T-slots 58, 60 in the plate 46. The slides 54, 56 are arranged for equal and opposite movement by means of a pinion having a fixed axis 66 on theplate 46 and engaging racks formed on the upper and lower sides respectively of the slides 54, 56. The amount of normalseparation of the lingers varied by means of a screw 68 having a thumb head 71 and threaded into the plate 46. The screw carries a member 70 rotatably mounted thereon and held from movement longitudinally of the screw by a flange 69 on one side and by the thumb head 71 on the other. One end of the slide 54 is reduced, passes freely through a'projection 72 on the member 70 and has a head 74 at its end between which and the projection 72 is a compression spring 7 6; Turning the thumb head 71 carries the member 70 toward and from the plate 46 and hence moves the finoperation upon the breast edge of a top lift 'of a heel to form thereon a concavity or scallop as shown in Fig- 3. In the opera-- tion of the machine the fingersare set by the ad usting screw 68 to a degree of separasquarely against the inclined plate 46 and at the lower portion of-the plate where the separation of the fingers, Fig.- 2,is greatest.

The heel is then slid forwardly and upwardly along the plate until the corners of the heel breast engage the inwardly turned ends ofthe fingers which are thereby wedged apart against the spring 7 6 if the normal separation of their upper ends is less than the width of the heel. Pressure of the heel against the hooked ends of the fingers then moves the frame 22, guided by the rod 26 and the rolls-l6 on the ribs 14:, against the spring 28 permitting the breast edge of the top lift of the heel to come into contact first with the face I) of the cutter 8 which cuts out a concavity or scallop in the heel edge of the top lift. The cutting operation is finished by'the face a of the cutter 8 and further movement of the work carries the face of the scallop cut'by the-cutter 8 across the peripheralface of thefinishing tool 10 which may be a sand paper roll tofinish' or scour the face of the scallop.

This movementof the frame-22 is effected against the spring 28 and when the operation is finished and the operator releases the forward pressure upon the shoe, the spring 28 automatically returns the frame to nor mal position, incidentally carrying the face of the scallop again across the face of the finishing tool and repeating the finishing operation. The work is, of course, also carried across the face of the cutter 8, but this having'cut to the depthpermitted by the thumb screw 36 does not injure the finished surface of the scallop.

The invention is not limited, however, to a sand paper roll as one of the tools. In place of the tool 1.0 a tool of the character shown in Figs. 5 and 6 may be employed. This tool comprises a" body portion 11: which has a number of cylindrical members 80 arranged near its peripheral edge face and projecting suificiently beyond that face so that they engage the concaved surface of the scallop formed by the cutter and iron or polish that surface to finish it;

The cylindrical members 80 are loosely retained in recesses 82 in the portion. 11, the recesses 82 having openings on the peripheral face of the tool which permit a portion of the curved surface of the members 80 to project beyond the face of the tool when impelled to do so by the centrifugal force due to rotation of the tool, the diameter of the tool being then somewhat greater than that of the cutting tool. Themembers 80 may yield inwardly against the force tending 'to throw them outwardly, and when brought in contact with the work exert a strongco'mbined pressing, rubbing andironingaction. The end of the members 80 with which the work first contacts in its passage member 90 having cutters 92 inserted therein. The inner portion of each cutter is cylindrical and is seated in a corresponding recess in the member 90 forming a pivot for the inner end of the cutter. Each cutter is engaged between its ends by a forked pin 94, of a form clearly shown in Fig. 8, the fork of which embraces the cutter and the other end of which is reduced to pass through a hole in a cover plate 96. The cover plate is provided with slots 98 and set screws 100 pass through the slots and'are threaded into the body member 90. By loosening the screws 100 the plate 96 may be turned relatively to the body member 90 and this movement causes the members 94; to slide along the cutters and swing the cutters about their pivoted inner ends to change the distance of their outer ends radially from theaxis of the cutter. After adjustment of the cutter to the proper radius the screws 100 are tightened and hold the cutters firmly in position. The outer ends or cutting portions of the cutters 92 are preferably bent, as shown in Fig. 5, to bring their ends substantially against the side plate 84 of the finishing tool 11. By this construction, the diameter of the cutting tool may be adjusted relativelyto the. diameter of the finishing tool and may be greater or 5 less than that of the finishing tool as desired and also the diameter of the cutting tool may be maintained constant as the length of the cutters 92 is reduced by grinding.

Having fully described my invention, 1

claim as new and desire to secure by United States Letters Patent:

. 1. In a machine for operating upon the heels of boots and shoes, thecombination of a plurality of rotary tools having a common axis and a work support movable in a direction parallel to the axis of the tools to cause the work to be acted upon by the tools successively.

2. A machine for operating upon the heels of boots and shoes' having, in combination, a rotary cutter having side and peripheral cutting portions, and means for positioning the shoe heel for the operation first of the side cutting portion of the cutter, said positioning means being movable to permit the operation of the said portions of the cutter upon the same portion of the shoe heel.

v 3*. In amachine for operating upon. the

&

heels of boots and shoes, the combination of a rotary cutter having a peripheral cutting portion parallel with its axis and a cutting portion extending from the peripheral face around the edge on to the side of the cutter, and a work holder movable axially of the cutter to bring the same part of the work first into contact with the side cutting por tion of the cutter for the rough cutting and then into contact with the peripheral portion for the finishing cut.

4. In a machine for operating upon the heels of boots and shoes, the combination of a rotary cutting tool, a rotary finishing tool axially concentric with the cutting tool, and a single means for guiding the work to cause operation of the tools successively upon the work.

5. In a machine for operating upon the heels of boots and shoes, the combination of a shaft, a cutting tool and a scouring tool mounted upon the shaft, and a single means constructed and arranged for operative movement to guide the work first to cause operation of the cutting tool upon the work and then to cause operation of the scouring tool upon the work.

6. In a machine for operating upon the heels of boots and shoes, the combination of a cutting tool, a scouring tool, a work carrier arranged for operative movement with and by the work to cause the work to be acted upon by the cutting and scouring tools successively.

7. In a machine for concaving the breast edge of a top lift of a shoe heel, a combined cutting and scouring tool constructed and arranged to cause the cutting and scouring of the top lift concavity to be effected substantially as parts of the same operation.

8. In a machine for operating upon the breast portion of a heel adjacent to the top lift, the combination of a combined concaving and scouring tool, with shoe positioning and guiding means movable relatively to the tool to effect the concaving and scouring operations.

9. A machine for scalloping the breast of the top lift of a shoe heel having, in combination, means for forming a scallop, means for finishing the surface of the scallop, shoe resting means, and means permitting relative movement of the resting means and the forming and finishing means to effect their operations successively upon the top lift.

10. In a machine for operating upon the breast portion of a shoe heel adjacent to the top lift to form a concavity therein, a combined rotary cutting and finishing tool constructed and arranged to perform upon said portion a cutting and a finishing operation while the work is in engagement with the tool.

11. In a machine of the class described, the combination of a plurality of rotary tools having their axes extending in the same direction and having acting faces sub stantially parallel with their axes, and work resting means guided for movement past the acting faces of the tools to cause the tools to act upon the work.

7, 12. In a machine of the class described, the combination of a plurality of rotary tools having their axes extending in the stantially parallel with their axes, work guiding means movable past the acting faces of the tools in a direction parallel with the axes of the tools, and means for automatically returning the work position-q ing means to initial position.

14. In a machine of the class described, the combination of a pair of rotary tools having their axes coincident and adapted to operate successively upon a shoe heel to form and finish a scallop in the breast edge of the top lift, a plate arranged at an inclination to the direction of the axes of the tools and against which the tread face'of the top lift is presented, and means for guiding the plate for movement in the direction of the axes of the tools.

15. In a machine of the class described, the combination of a pair of rotary tools having their axes coincident and adapted to operate successively upon a shoe heel to form a scallop in the breast portion of a heel, a plate arranged at an inclination to the direction of the axes of the tools and movement in the direction of the axes of the tools, and means for locating the heel on the plate so as to cause the tool to operate equally upon the heel on each side of the longitudinal median line of the heel.

16. In a -machine of the class described, the combination of a pair of rotary tools having their axes coincident and adapted to operate successively upon a shoe heel to form a scallop in the breast portion of the heel, a plate arranged at an inclination to the direction of the axes of the tools and against which the tread face ofthe heel is presented, and yielding means adapted to receive heels of various sizes and to so locate the heel on the plate that the tool will operate equally upon the heel on each side of the longitudinal median line of the heel.

17. In a machine for operating upon parts of boots and shoes, the combination of a rotary stock removing tool, a finishing tool of the same diameter as the stock removing tool, and work presenting means arranged to present the work first to one tool and then to the other tool by continual movement in a straight line.

18. In a machine for operating upon parts of boots and shoes, the combination of a rotary stock removing tool, a rotary finishing tool having an acting face forming substantially a continuation of that oil the stock removing tool, and work presenting means arranged to present the work to one tool and then to the other tool by movements in the direction of the axes about which the tools rotate.

19. In a machine for operating upon. parts of boots and shoes, a tool having stock removing and surface finishing parts, one

part forming substantially a continuation of the other part, and means constructed and arranged for presentation of the work to the tool for the operation of the parts of the tool in turn to remove stock and finish the surface from which. the stock is removed.

to the radius of the finishing tool to render the radii equal.

22. In a machine of the class described, the combination of a rotary cutting tool, a rotary finishing tool, said tools having peripheral cutting faces and being mounted with their axes coincident, means for guiding the work across their acting faces, and means for adjusting the radius of one of the toolsv to enable the tools to act successively upon the same portion of the work when. the work is moved. across their acting faces.

23. In a machine of the class described, the combination of a rotary tool having its acting face parallel with its axis of rotation, means for maintaining a heel with its tread face oblique to the said axis and movable to guide the heel in that position to the tool for operation of the tool upon the heel.

24. In a machine of the class described, the combination of a rotary tool having an acting face parallel with its axis of rotation, positioning means for maintaining a heel with its tread face oblique to the said axis, and means for guiding said positioning means for movement in the direction of said axis for the operation of the tool upon the heel.

25. In a machine of the class described, the combination of a rotary tool having a cylindrical acting face, means for positioning a shoe heel'with its tread face at an oblique angle to the acting-face of the tool, and means for guiding the positioning means in a direction parallel to the acting face of the tool. 7

In testimony whereof I have signed my name to this specification.

FREDERICK M. FURBER. 

